File:Photon Source (5941055810).jpg
Original file (2,400 × 1,594 pixels, file size: 1.77 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionPhoton Source (5941055810).jpg |
Gated photon source starts with the bright green 532nm wavelength laser beam that strikes a crystal (bright green spot, center) and is converted into pairs of photons at 810nm (false colored blue here, it's at the end of the red spectrum) and 1550nm (in the infrared, false colored red here.). The "blue" beam is the herald channel, the "red" beam goes through a spool of optical fiber (right) to delay it long enough for the ga6te to open or shut. Credit: Brida, INRIM Disclaimer: Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST. Use of NIST Information: These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology (NIST). With the exception of material marked as copyrighted, information presented on these pages is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested. |
Date | |
Source | Photon Source |
Author | National Institute of Standards and Technology |
Licensing
[edit]Public domainPublic domainfalsefalse |
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
العربية ∙ English ∙ 日本語 ∙ македонски ∙ Nederlands ∙ +/− |
This image was originally posted to Flickr by National Institute of Standards and Technology at https://flickr.com/photos/63059536@N06/5941055810. It was reviewed on 7 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work. |
7 September 2016
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:12, 7 September 2016 | 2,400 × 1,594 (1.77 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D90 |
Exposure time | 1/15 sec (0.066666666666667) |
F-number | f/1.8 |
ISO speed rating | 2,500 |
Date and time of data generation | 18:33, 6 December 2010 |
Lens focal length | 85 mm |
Width | 4,288 px |
Height | 2,848 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS5 Windows |
File change date and time | 13:44, 18 January 2011 |
Y and C positioning | Co-sited |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 18:33, 6 December 2010 |
Meaning of each component |
|
Image compression mode | 4 |
APEX shutter speed | 3.906891 |
APEX aperture | 1.695994 |
APEX exposure bias | 0 |
Maximum land aperture | 1.6 APEX (f/1.74) |
Subject distance | 3.98 meters |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 127 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Serial number of camera | 6018349 |
Lens used | 85.0 mm f/1.8 |
Date metadata was last modified | 08:44, 18 January 2011 |
Unique ID of original document | xmp.did:DA7995FC3223E011B8E39487FB923928 |